Arctic Oscillation (AO) Index: CPC
A measure of zonal flow near Arctic.
Correlation of the January AO with Sea Level Pressure (SLP) from the NCEP/NCAR Reanalysis.
WRIT time-series
Description
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The loading pattern of the AO is defined by NOAA/CPC as the leading mode of Empirical Orthogonal Function (EOF) analysis of monthly mean 1000mb height during 1979-2000 period.
Temporal Coverage
- Monthly values: 1950/01 to present
- Update Status: Monthly
Data Notes
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Units: mb
Get Data
Time-series List
Source, citation and related Information.
Related Time-series
Links
- NCEP AO
Original Source
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Data is from NOAA/CPC at http://www.cpc.ncep.noaa.gov/products/precip/CWlink/daily_ao_index/ao_index.html.
Time-series source dataset(s)
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Input data for the mode calculation is the NCEP/NCAR Reanalysis 1000mb geopotential height.
Citation
References
Analysis pages
- WRIT correlation
- WRIT time-series